Explain why water droplets at the bottom of a thundercloud become negatively charged

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

Which statement best explains why the overall charge on an atom is zero?

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging